1. Two of them

One at the Convention when Carter page was wearing a wire an caught Yertle and ryan talking about Russian help with throwing the election
and
the one Carter apparently took to Russia, Trump supposedly on it agreeing to sell out our country.

3. Wrong. Carter Page is a target of the Oct. FISA warrant, so no wire at RNC on him.

If Page was collaborating in July, he would not be a warrant target in Oct.

The initial FISA warrant was issued after FBI gets the Russian Dossier. The second warrant is when they find the secret trump Russia server connection to Alfa Bank and SVB.

There may be other FISA warrants as a result of the in=nitial one or the second one, or resulting from both, depending on where the evidence pointed. Flynn and Manafort has both been shown to be foreign agents already, so they top my list. And who knows how many regular warrants are issued or even secret grand juries empaneled.
We know the White House was served papers when they ordered document preservation of all Russia related material. That happened just before trump started cyber lynching Obama for spying on him, so I suspect trump got some bad news about being spied on himself when those papers were served.

The FBI obtained a secret court order last summer to monitor the communications of an adviser to presidential candidate Donald Trump, part of an investigation into possible links between Russia and the campaign, law enforcement and other U.S. officials said.

2. Smoking Gun??

5. Not until the tape (if it exists) is authenticated.

Personally I still lean more towards certain higher ups in Congress being the ones who were communicating with the Russians which could explain why they continue stonewall an actual independent investigation that isnt under their control as that could expose them and I doubt they want to go to prison.